I'm diligently searching for filler reviews to get rid of my flat forehead.

Ever since I was young, my dream has been to have a "goddess hairstyle" without bangs, but because my forehead is flat and smooth, I've always covered it with my hair. As I've gotten older, managing bangs has become too much of a hassle, and I really want to show off my forehead, so I'm seriously considering fillers these days. I spend every day staring intently at forehead filler reviews on mom cafes and beauty communities. It definitely seems that once my flat forehead becomes rounded, the whole face gains a lot of dimension and looks much younger. However, I've heard that quite a large amount is used, so I'm worried about it clumping. Some people say I need to choose carefully between domestic and imported fillers; does the duration of the effect or the natural look differ significantly depending on the type of filler? Since this is my first time, choosing a clinic is difficult because I'm worried my forehead might look unnaturally protruding. If you know of a place in the Gangnam area that does round and beautiful fillers well, please recommend it. I'd also like to know the approximate cost per 1cc. Before my vacation, I want to get rid of this "little forehead," get beautiful fillers, and wear my hair pulled back!